T vs GS Comparison

The wireless business contributes nearly 70% of AT&T's revenue. The company is the third-largest US wireless carrier, connecting 74 million postpaid and 17 million prepaid phone customers. Fixed-line enterprise services, which account for about 14% of revenue, include internet access, private networking, security, voice, and wholesale network capacity. Residential services, about 11% of revenue, primarily consist of in-home broadband internet access, serving 15 million customers. AT&T also has a sizable presence in Mexico, with 25 million wireless customers, but this business only accounts for 3% of revenue. The company recently sold its 70% equity stake in satellite television provider DirecTV to its partner, private equity firm TPG.

Goldman Sachs is a storied financial institution, founded in 1869 and best known for its role as a leading global investment bank. The firm has a sprawling reach across global financial centers and has been the leading provider of global merger and acquisition advisory services, by revenue, for the past 20 years. Since the global financial crisis, Goldman has expanded its offerings into more stable fee-based businesses like asset and wealth management, which comprised roughly 30% of post-provision revenue at the end of 2025. The firm generates revenue from investment banking, global market making and trading, lending, asset management, wealth management, and a small and declining portfolio of consumer credit card loans.